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path: root/drivers/input/serio
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2017-09-15Input: i8042 - add Gigabyte P57 to the keyboard reset tableKai-Heng Feng
Similar to other Gigabyte laptops, the touchpad on P57 requires a keyboard reset to detect Elantech touchpad correctly. BugLink: https://bugs.launchpad.net/bugs/1594214 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-09-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - a new GPIO bit-banging driver implementing PS/2 protocol - a new power key driver for Rockchip RK805 PMIC - bunch of patches constifying various device ID structures - Elan I2C touchpad driver now supports devices with 2 buttons - other assorted fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (76 commits) Input: byd - make array seq static, reduces object code size Input: xilinx_ps2 - fix multiline comment style Input: pxa27x_keypad - handle return value of clk_prepare_enable Input: tegra-kbc - handle return value of clk_prepare_enable Input: PS/2 gpio bit banging driver for serio bus Input: xen-kbdfront - enable auto repeat for xen keyboard frontend driver Input: ambakmi - constify amba_id Input: atmel_mxt_ts - add support for reset line Input: atmel_mxt_ts - use more managed resources Input: wacom_w8001 - constify serio_device_id Input: tsc40 - constify serio_device_id Input: touchwin - constify serio_device_id Input: touchright - constify serio_device_id Input: touchit213 - constify serio_device_id Input: penmount - constify serio_device_id Input: mtouch - constify serio_device_id Input: inexio - constify serio_device_id Input: hampshire - constify serio_device_id Input: gunze - constify serio_device_id Input: fujitsu_ts - constify serio_device_id ...
2017-08-31Input: xilinx_ps2 - fix multiline comment styleMichal Simek
Fix multiline comments style not to be reported by checkpatch. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-28Input: PS/2 gpio bit banging driver for serio busDanilo Krummrich
This driver provides PS/2 serio bus support by implementing bit banging with the GPIO API. The GPIO pins, data and clock, can be configured with a node in the device tree or by generic device properties (GDP). Writing to a device is supported as well, though it is possible timings can not be halt as they are tough and difficult to reach with bit banging. Therefore it can be configured (also in DT and GDP) whether the serio write function should be available for clients. This driver is for development purposes and not recommended for productive use. However, this driver can be useful e.g. when no USB port is available or using old peripherals is desired as PS/2 controller chips getting rare. This driver was tested on bcm2825 and on Kirin 960 and it worked well together with the atkbd and psmouse driver. Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-24Input: ambakmi - constify amba_idArvind Yadav
amba_id are not supposed to change at runtime. All functions working with const amba_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-22parisc/serio: Fix section mismatches in gscps2 and hp_sdc driversHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2017-08-18Input: constify serio_device_idArvind Yadav
serio_device_id are not supposed to change at runtime. All functions working with serio_device_id provided by <linux/serio.h> work with const serio_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-17Input: i8042 - constify pnp_device_idArvind Yadav
pnp_device_id are not supposed to change at runtime. All functions working with pnp_device_id provided by <linux/pnp.h> work with const pnp_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-24Merge branch 'bind_unbind' of ↵Dmitry Torokhov
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into next This brings in devm_device_add_group() and friends so that we can create driver-specific device attributes as managed resources.
2017-07-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull a few more input updates from Dmitry Torokhov: - multi-touch handling for Xen - fix for long-standing bug causing crashes in i8042 on boot - change to gpio_keys to better handle key presses during system state transition * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: i8042 - fix crash at boot time Input: gpio_keys - handle the missing key press event in resume phase Input: xen-kbdfront - add multi-touch support
2017-07-12Input: serio - constify attribute_group structuresArvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6862 1008 4 7874 1ec2 drivers/input/serio/serio.o File size After adding 'const': text data bss dec hex filename 6990 880 4 7874 1ec2 drivers/input/serio/serio.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Merge branch 'next' into for-linusDmitry Torokhov
Prepare second round of input updates for 4.13 merge window.
2017-07-12Input: i8042 - fix crash at boot timeChen Hong
The driver checks port->exists twice in i8042_interrupt(), first when trying to assign temporary "serio" variable, and second time when deciding whether it should call serio_interrupt(). The value of port->exists may change between the 2 checks, and we may end up calling serio_interrupt() with a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 IP: [<ffffffff8150feaf>] _spin_lock_irqsave+0x1f/0x40 PGD 0 Oops: 0002 [#1] SMP last sysfs file: CPU 0 Modules linked in: Pid: 1, comm: swapper Not tainted 2.6.32-358.el6.x86_64 #1 QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:[<ffffffff8150feaf>] [<ffffffff8150feaf>] _spin_lock_irqsave+0x1f/0x40 RSP: 0018:ffff880028203cc0 EFLAGS: 00010082 RAX: 0000000000010000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000282 RSI: 0000000000000098 RDI: 0000000000000050 RBP: ffff880028203cc0 R08: ffff88013e79c000 R09: ffff880028203ee0 R10: 0000000000000298 R11: 0000000000000282 R12: 0000000000000050 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000098 FS: 0000000000000000(0000) GS:ffff880028200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000050 CR3: 0000000001a85000 CR4: 00000000001407f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 1, threadinfo ffff88013e79c000, task ffff88013e79b500) Stack: ffff880028203d00 ffffffff813de186 ffffffffffffff02 0000000000000000 <d> 0000000000000000 0000000000000000 0000000000000000 0000000000000098 <d> ffff880028203d70 ffffffff813e0162 ffff880028203d20 ffffffff8103b8ac Call Trace: <IRQ> [<ffffffff813de186>] serio_interrupt+0x36/0xa0 [<ffffffff813e0162>] i8042_interrupt+0x132/0x3a0 [<ffffffff8103b8ac>] ? kvm_clock_read+0x1c/0x20 [<ffffffff8103b8b9>] ? kvm_clock_get_cycles+0x9/0x10 [<ffffffff810e1640>] handle_IRQ_event+0x60/0x170 [<ffffffff8103b154>] ? kvm_guest_apic_eoi_write+0x44/0x50 [<ffffffff810e3d8e>] handle_edge_irq+0xde/0x180 [<ffffffff8100de89>] handle_irq+0x49/0xa0 [<ffffffff81516c8c>] do_IRQ+0x6c/0xf0 [<ffffffff8100b9d3>] ret_from_intr+0x0/0x11 [<ffffffff81076f63>] ? __do_softirq+0x73/0x1e0 [<ffffffff8109b75b>] ? hrtimer_interrupt+0x14b/0x260 [<ffffffff8100c1cc>] ? call_softirq+0x1c/0x30 [<ffffffff8100de05>] ? do_softirq+0x65/0xa0 [<ffffffff81076d95>] ? irq_exit+0x85/0x90 [<ffffffff81516d80>] ? smp_apic_timer_interrupt+0x70/0x9b [<ffffffff8100bb93>] ? apic_timer_interrupt+0x13/0x20 To avoid the issue let's change the second check to test whether serio is NULL or not. Also, let's take i8042_lock in i8042_start() and i8042_stop() instead of trying to be overly smart and using memory barriers. Signed-off-by: Chen Hong <chenhong3@huawei.com> [dtor: take lock in i8042_start()/i8042_stop()] Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-06Merge branch 'work.probe_kernel_read' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull probe_kernel_read() uses from Al Viro: "Several open-coded probe_kernel_read()..." * 'work.probe_kernel_read' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: dio: use probe_kernel_read() hp_sdc: use probe_kernel_read() hpfb: use probe_kernel_read()
2017-06-19Input: i8042 - add Fujitsu Lifebook AH544 to notimeout listDaniel Drake
Without this quirk, the touchpad is not responsive on this product, with the following message repeated in the logs: psmouse serio1: bad data from KBC - timeout Add it to the notimeout list alongside other similar Fujitsu laptops. Signed-off-by: Daniel Drake <drake@endlessm.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-05-27hp_sdc: use probe_kernel_read()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-05-02Merge branch 'next' into for-linusDmitry Torokhov
Prepare input updates for 4.12 merge window.
2017-04-24Input: i8042 - add Clevo P650RS to the i8042 reset listDmitry Torokhov
Clevo P650RS and other similar devices require i8042 to be reset in order to detect Synaptics touchpad. Reported-by: Paweł Bylica <chfast@gmail.com> Tested-by: Ed Bordin <edbordin@gmail.com> Cc: stable@vger.kernel.org Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=190301 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03Merge tag 'v4.11-rc5' into nextDmitry Torokhov
Sync up with mainline to bring in changes to input subsystem merged through other trees.
2017-03-25Input: serio - add fast reconnect optionDmitry Torokhov
Devices connected to serio bus are quite slow, and to improve apparent speed of resume process, serio core resumes (reconnects) its devices asynchronously, by posting port reconnect requests to a workqueue. Unfortunately this means that if there is a dependent device of a given serio port (for example SMBus part of touchpad connected via both PS/2 and SMBus), we do not have a good way of ensuring resume order. This change allows drivers to define "fast reconnect" handlers that would be called in-line during system resume. Drivers need to ensure that these handlers are truly "fast". Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-17Input: convert remaining uses of pr_warning to pr_warnJoe Perches
To enable eventual removal of pr_warning This makes pr_warn use consistent for drivers/input Prior to this patch, there were 8 uses of pr_warning and 17 uses of pr_warn in drivers/input Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-10Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux listDmitry Torokhov
TUXEDO BU1406 does not implement active multiplexing mode properly, and takes around 550 ms in i8042_set_mux_mode(). Given that the device does not have external AUX port, there is no downside in disabling the MUX mode. Reported-by: Paul Menzel <pmenzel@molgen.mpg.de> Suggested-by: Vojtech Pavlik <vojtech@suse.cz> Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-07Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000Kai-Heng Feng
The aux port does not get detected without noloop quirk, so external PS/2 mouse cannot work as result. The PS/2 mouse can work with this quirk. BugLink: https://bugs.launchpad.net/bugs/1591053 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-24Merge tag 'v4.10-rc5' into nextDmitry Torokhov
Sync up with mainline to bring up improvements in various subsystems.
2017-01-22Input: i8042 - add dbg msg when a command can't write its parameterMarcos Paulo de Souza
This can happen in cases like bug #102951[1], so add a proper debug msg as done in wait_read. Also, change wait_read debug message to differ from wait_write. [1] https://bugzilla.kernel.org/show_bug.cgi?id=102951 Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-21Input: serio - drop unnecessary calls to device_init_wakeupGuenter Roeck
Calling device_init_wakeup in the remove function is unnecessary since the device is going away, and thus won't be able to cause any wakeups under any circumstances. Besides, the driver cleanup code already handles the necessary cleanup. Similarly, disabling wakeup in the probe error path is unnecessary, as is disabling wakeup in the probe function in the first place. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-18Input: xilinx_ps2 - use 'dev' instead of dereferencing itGuenter Roeck
Use local variable 'dev' instead of dereferencing it several times. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-18Input: at32psif - drop unnecessary error messages and other changesGuenter Roeck
Error messages after memory allocation failures are unnecessary and can be dropped, given that they are emitted as dev_dbg() so nobody except person actively debugging the driver would see them. Also replace jump to return 'goto l; ... l: return e;' with 'return e;' Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Small driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data Input: adxl34x - make it enumerable in ACPI environment Input: ALPS - fix TrackStick Y axis handling for SS5 hardware Input: synaptics-rmi4 - fix F03 build error when serio is module Input: xpad - use correct product id for x360w controllers Input: synaptics_i2c - change msleep to usleep_range for small msecs Input: i8042 - add Pegatron touchpad to noloop table Input: joydev - remove unused linux/miscdevice.h include
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-19Input: i8042 - Trust firmware a bit more when probing on X86Dmitry Torokhov
The error message "Can't read CTR while initializing i8042" appears on Cherry Trail-based devices at each boot time: i8042: PNP: No PS/2 controller found. Probing ports directly. i8042: Can't read CTR while initializing i8042 i8042: probe of i8042 failed with error -5 This happens because we historically do not trust firmware on X86 and, while noting that PNP does not show keyboard or mouse devices, we still charge ahead and try to probe the controller. Let's relax this a bit and if results of PNP probe agree with the results of platform initialization/quirks conclude that there is, in fact, no i8042. While at it, let's avoid using x86_platform.i8042_detect() and instead abort execution early if platform indicates that it can not possibly have i8042 (x86_platform.legacy.i8042 equals X86_LEGACY_I8042_PLATFORM_ABSENT). Reported-and-tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Cc: linux-input@vger.kernel.org Link: http://lkml.kernel.org/r/1481317061-31486-3-git-send-email-dmitry.torokhov@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-12-18Input: i8042 - force synchronous probing of PNP driversDmitry Torokhov
We rely on the result of scanning PNP bus for keyboard and mouse devices to decide whether we should continue initialization of i8042 driver or not, so the probes can not be asynchronous. Also, it is not a good idea to unbind either of the PNP devices while i8042 is running, so let's disable bind/unbind for the PNP drivers through sysfs and rely on i8042 cleaning after itself properly. User can still unbind and rebind entire i8042 and that will take care of PNP drivers as well. Reviewed-by: Luis R. Rodriguez <mgrof@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-18Input: i8042 - add Pegatron touchpad to noloop tableMarcos Paulo de Souza
Avoid AUX loopback in Pegatron C15B touchpad, so input subsystem is able to recognize a Synaptics touchpad in the AUX port. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=93791 (Touchpad is not detected on DNS 0801480 notebook (PEGATRON C15B)) Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-16Merge branch 'next' into for-linusDmitry Torokhov
Prepare input updates for 4.10 merge window.
2016-12-12Input: i8042 - comment #else/#endif of CONFIG_PNPMarcos Paulo de Souza
As this define check if huge, this makes easier to read the code. Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-11-22Input: i8042 - fix typo from i8042_aux_close to i8042_port_closeMarcos Paulo de Souza
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-10-21Input: i8042 - use chassis info to skip selftest on Asus laptopsMarcos Paulo de Souza
Instead of relying on this model zoo let's skip selftest on all newer Asus laptops (newer as in when they changed "Computer" -> "COMPUTER" in their DMI data). Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-10-19Input: i8042 - add XMG C504 to keyboard reset tablePatrick Scheuring
The Schenker XMG C504 is a rebranded Gigabyte P35 v2 laptop. Therefore it also needs a keyboard reset to detect the Elantech touchpad. Otherwise the touchpad appears to be dead. With this patch the touchpad is detected: $ dmesg | grep -E "(i8042|Elantech|elantech)" [ 2.675399] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12 [ 2.680372] i8042: Attempting to reset device connected to KBD port [ 2.789037] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 2.791586] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 2.813840] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4 [ 3.811431] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x361f0e) [ 3.825424] psmouse serio1: elantech: Synaptics capabilities query result 0x00, 0x15, 0x0f. [ 3.839424] psmouse serio1: elantech: Elan sample query result 03, 58, 74 [ 3.911349] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input6 Signed-off-by: Patrick Scheuring <patrick.scheuring.dev@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-10-13Merge tag 'v4.8' into nextDmitry Torokhov
Sync up with mainline to bring in I2C host notify changes and other updates.
2016-10-13Merge branch 'next' into for-linusDmitry Torokhov
Prepare second round of input updates for 4.9 merge window.
2016-10-11Input: i8042 - skip selftest on ASUS laptopsMarcos Paulo de Souza
On suspend/resume cycle, selftest is executed to reset i8042 controller. But when this is done in Asus devices, subsequent calls to detect/init functions to elantech driver fails. Skipping selftest fixes this problem. An easier step to reproduce this problem is adding i8042.reset=1 as a kernel parameter. On Asus laptops, it'll make the system to start with the touchpad already stuck, since psmouse_probe forcibly calls the selftest function. This patch was inspired by John Hiesey's change[1], but, since this problem affects a lot of models of Asus, let's avoid running selftests on them. All models affected by this problem: A455LD K401LB K501LB K501LX R409L V502LX X302LA X450LCP X450LD X455LAB X455LDB X455LF Z450LA [1]: https://marc.info/?l=linux-input&m=144312209020616&w=2 Fixes: "ETPS/2 Elantech Touchpad dies after resume from suspend" (https://bugzilla.kernel.org/show_bug.cgi?id=107971) Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-10-03Merge branch 'next' into for-linusDmitry Torokhov
Prepare first round of input updates for 4.9 merge window.
2016-09-21Input: serio - add hangup supportHans Verkuil
The Pulse-Eight USB CEC adapter is a usb device that shows up as a ttyACM0 device. It requires that you run inputattach in order to communicate with it via serio. This all works well, but it would be nice to have a udev rule to automatically start inputattach. That too works OK, but the problem comes when the USB device is unplugged: the tty hangup is never handled by the serio framework so the inputattach utility never exits and you have to kill it manually. By adding this hangup callback the inputattach utility now properly exits as soon as the USB device is unplugged. The udev rule I used on my Debian sid system is: SUBSYSTEM=="tty", KERNEL=="ttyACM[0-9]*", ATTRS{idVendor}=="2548", ATTRS{idProduct}=="1002", ACTION=="add", TAG+="systemd", ENV{SYSTEMD_WANTS}+="pulse8-cec-inputattach@%k.service" And /etc/systemd/system/pulse8-cec-inputattach@.service is as follows: =============================================================== [Unit] Description=inputattach for pulse8-cec device on %I [Service] Type=simple ExecStart=/usr/local/bin/inputattach --pulse8-cec /dev/%I KillMode=process =============================================================== Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-19Input: i8042 - set up shared ps2_cmd_mutex for AUX portsDmitry Torokhov
The commit 4097461897df ("Input: i8042 - break load dependency ...") correctly set up ps2_cmd_mutex pointer for the KBD port but forgot to do the same for AUX port(s), which results in communication on KBD and AUX ports to clash with each other. Fixes: 4097461897df ("Input: i8042 - break load dependency ...") Reported-by: Bruno Wolff III <bruno@wolff.to> Tested-by: Bruno Wolff III <bruno@wolff.to> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-07-27Input: i8042 - break load dependency between atkbd/psmouse and i8042Dmitry Torokhov
As explained in 1407814240-4275-1-git-send-email-decui@microsoft.com we have a hard load dependency between i8042 and atkbd which prevents keyboard from working on Gen2 Hyper-V VMs. > hyperv_keyboard invokes serio_interrupt(), which needs a valid serio > driver like atkbd.c. atkbd.c depends on libps2.c because it invokes > ps2_command(). libps2.c depends on i8042.c because it invokes > i8042_check_port_owner(). As a result, hyperv_keyboard actually > depends on i8042.c. > > For a Generation 2 Hyper-V VM (meaning no i8042 device emulated), if a > Linux VM (like Arch Linux) happens to configure CONFIG_SERIO_I8042=m > rather than =y, atkbd.ko can't load because i8042.ko can't load(due to > no i8042 device emulated) and finally hyperv_keyboard can't work and > the user can't input: https://bugs.archlinux.org/task/39820 > (Ubuntu/RHEL/SUSE aren't affected since they use CONFIG_SERIO_I8042=y) To break the dependency we move away from using i8042_check_port_owner() and instead allow serio port owner specify a mutex that clients should use to serialize PS/2 command stream. Reported-by: Mark Laws <mdl@60hz.org> Tested-by: Mark Laws <mdl@60hz.org> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-06-23Input: ams_delta_serio - fix spelling mistake: "paritiy" -> "parity"Colin Ian King
trivial fix to spelling mistake in dev_warn message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-02-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Just small driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: colibri-vf50-ts - add missing #include <linux/of.h> Input: adp5589 - fix row 5 handling for adp5589 Input: edt-ft5x06 - fix setting gain, offset, and threshold via device tree Input: vmmouse - fix absolute device registration Input: serio - drop warnings in case of EPROBE_DEFER from serio_find_driver() Input: cap11xx - add missing of_node_put Input: sirfsoc-onkey - allow modular build Input: xpad - remove unused function
2016-01-27Input: serio - drop warnings in case of EPROBE_DEFER from serio_find_driver()Grygorii Strashko
Now serio_find_driver() will print warnings in case device_attach() returns -EPROBE_DEFER. Those warnings are obsolete, in genral, because: - DD core can report the same if required - since commit 013c074f8642 ("PM / sleep: prohibit devices probing during suspend/hibernation") the devices probing is prohibited during System suspend and deferred device will be carefully reprobed once Resume is finished. Hence, drop warnings in case of EPROBE_DEFER from serio_find_driver(). Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - new driver for eGalaxTouch serial touchscreen - new driver for TS-4800 touchscreen - an update for Goodix touchscreen driver - PS/2 mouse module was reworked to limit number of protocols we try on pass-through ports to speed up their detection time - wacom_w8001 touchscreen driver now reports pen and touch via separate instances of input devices - other driver changes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits) Input: elantech - mark protocols v2 and v3 as semi-mt Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE Input: gpio-keys - fix check for disabling unsupported keys Input: omap-keypad - remove dead check Input: ti_am335x_tsc - fix HWPEN interrupt handling Input: omap-keypad - set tasklet data earlier Input: rohm_bu21023 - fix handling of retrying firmware update Input: ALPS - report v3 pinnacle trackstick device only if is present Input: ALPS - detect trackstick presence for v7 protocol Input: pcap_ts - use to_delayed_work Input: bma150 - constify bma150_cfg structure Input: i8042 - add Fujitsu Lifebook U745 to the nomux list Input: egalax_ts_serial - fix potential NULL dereference on error Input: uinput - sanity check on ff_effects_max and EV_FF Input: uinput - rework ABS validation Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen" Input: goodix - add axis swapping and axis inversion support Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send Input: goodix - add power management support ...
2016-01-13Merge tag 'char-misc-4.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc updates from Greg KH: "Here's the big set of char/misc patches for 4.5-rc1. Nothing major, lots of different driver subsystem updates, full details in the shortlog. All of these have been in linux-next for a while" * tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (71 commits) mei: fix fasync return value on error parport: avoid assignment in if parport: remove unneeded space parport: change style of NULL comparison parport: remove unnecessary out of memory message parport: remove braces parport: quoted strings should not be split parport: code indent should use tabs parport: fix coding style parport: EXPORT_SYMBOL should follow function parport: remove trailing white space parport: fix a trivial typo coresight: Fix a typo in Kconfig coresight: checking for NULL string in coresight_name_match() Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical Drivers: hv: utils: fix hvt_op_poll() return value on transport destroy Drivers: hv: vmbus: fix the building warning with hyperv-keyboard extcon: add Maxim MAX3355 driver Drivers: hv: ring_buffer: eliminate hv_ringbuffer_peek() Drivers: hv: remove code duplication between vmbus_recvpacket()/vmbus_recvpacket_raw() ...
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